The Forest Cathedral
10 Achievements
Steam
Dichlorodiphenyltrichloroethane
Spray five swamps with DDT
78.4%
How to unlock the Dichlorodiphenyltrichloroethane achievement in The Forest Cathedral - Definitive Guide
This is the first puzzle you will come across. Run around the pier and spray swamp area with DDT.
Full achievement walkthrough (This puzzle starts at 1:38):
Timestamps in the pinned comment.
Full achievement walkthrough (This puzzle starts at 1:38):
Timestamps in the pinned comment.